import Vue from "vue";
import Router from "vue-router";

Vue.use(Router);

/* Layout */
import Layout from "@/layout";

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [{
        path: "/login",
        component: () =>
            import ("@/views/login/index"),
        hidden: true,
    },

    {
        path: "/404",
        component: () =>
            import ("@/views/404"),
        hidden: true,
    },

    {
        path: "/",
        component: Layout,
        redirect: "/dashboard",
        children: [{
            path: "dashboard",
            name: "Dashboard",
            component: () =>
                import ("@/views/dashboard/index"),
            meta: { title: "Dashboard", icon: "dashboard" },
        }, ],
    },

    {
        path: "/example",
        component: Layout,
        redirect: "/example/table",
        name: "example",
        meta: { title: "统一用户", icon: "el-icon-s-help" },
        alwaysShow: true,
        children: [{
            path: "table",
            name: "table",
            component: () =>
                import ("@/views/table/index"),
            meta: { title: "用户列表", icon: "table" },
        }, ],
    },

    {
        path: "/server",
        component: Layout,
        redirect: "/server/servertable",
        name: "server",
        meta: { title: "统一资源管理", icon: "el-icon-s-help" },
        alwaysShow: true,
        children: [{
            path: "servertable",
            name: "servertable",
            component: () =>
                import ("@/views/servertable/index"),
            meta: { title: "资源列表", icon: "table" },
        }, ],
    },

    {
        path: "/form",
        component: Layout,
        children: [{
            path: "index",
            name: "Form",
            component: () =>
                import ("@/views/form/index"),
            meta: { title: "Form", icon: "form" },
        }, ],
    },

    {
        path: "/nested",
        component: Layout,
        redirect: "/nested/menu1",
        name: "Nested",
        meta: {
            title: "Nested",
            icon: "nested",
        },
        children: [{
                path: "menu1",
                component: () =>
                    import ("@/views/nested/menu1/index"), // Parent router-view
                name: "Menu1",
                meta: { title: "Menu1" },
                children: [{
                        path: "menu1-1",
                        component: () =>
                            import ("@/views/nested/menu1/menu1-1"),
                        name: "Menu1-1",
                        meta: { title: "Menu1-1" },
                    },
                    {
                        path: "menu1-2",
                        component: () =>
                            import ("@/views/nested/menu1/menu1-2"),
                        name: "Menu1-2",
                        meta: { title: "Menu1-2" },
                        children: [{
                                path: "menu1-2-1",
                                component: () =>
                                    import ("@/views/nested/menu1/menu1-2/menu1-2-1"),
                                name: "Menu1-2-1",
                                meta: { title: "Menu1-2-1" },
                            },
                            {
                                path: "menu1-2-2",
                                component: () =>
                                    import ("@/views/nested/menu1/menu1-2/menu1-2-2"),
                                name: "Menu1-2-2",
                                meta: { title: "Menu1-2-2" },
                            },
                        ],
                    },
                    {
                        path: "menu1-3",
                        component: () =>
                            import ("@/views/nested/menu1/menu1-3"),
                        name: "Menu1-3",
                        meta: { title: "Menu1-3" },
                    },
                ],
            },
            {
                path: "menu2",
                component: () =>
                    import ("@/views/nested/menu2/index"),
                name: "Menu2",
                meta: { title: "menu2" },
            },
        ],
    },

    {
        path: "external-link",
        component: Layout,
        children: [{
            path: "https://panjiachen.github.io/vue-element-admin-site/#/",
            meta: { title: "External Link", icon: "link" },
        }, ],
    },

    // 404 page must be placed at the end !!!
    { path: "*", redirect: "/404", hidden: true },
];

const createRouter = () =>
    new Router({
        // mode: 'history', // require service support
        scrollBehavior: () => ({ y: 0 }),
        routes: constantRoutes,
    });

const router = createRouter();

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
    const newRouter = createRouter();
    router.matcher = newRouter.matcher; // reset router
}

export default router;